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jabram's blog
Archive for January, 2013
Posted by jabram | Jan 23, 2013 @ 04:09 AM | 30,780 Views
There is a lot of information in this blog, please read it all, possibly read it more than once, do not start to apply any of the information before you fully understand it all and it actually makes sense to you, if there is anything you are not sure about, ask first, it can save a lot of time, expense and frustration.

A lot more APM 2.5 information can be found on Page 1 at APM 2.5, ArduCopter, RC Timer ArduFlyer, Tutorials & Discussion, updated regularly

A few people expressed an interest in updating the firmware on the ATmega32u2 used in APM 2.5 and ArduFlyer 2.5, the earlier ArduFlyer 2.5 had the bootloader missing leaving you no option but to use a programmer to update the firmware.

If you wish to restore the bootloader, you can get the file I created in this post
Restore DFU Bootloader to ArduFlyer 2.5 ATmega32U2
then follow the same instructions below to program that into the ATmega32U2, thereafter you can use Atmel Flip to perform firmware upgrades
I know there are many different cheaper ways to program an Atmel microcontroller, I have over the years purchased some "clone" programmers, sooner or later it comes back to bite you when Atmel change something or uses a feature that was until then undocumented and the "clone" cannot work with those newer features..

Best to start out with a genuine Atmel programmer. The cheapest one is only $34, ...Continue Reading